Imperiled Monarch Butterflies Get $3.2 Million From U.S. Government

A new partnership involves government, private donations, and a lot of milkweed.

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A monarch butterfly rests on vegetation in Minnesota.

Photograph by Jim Brandenburg, Minden Pictures/Corbis

PUBLISHED February 11, 2015

Monarch butterflies have experienced a breathtaking decline in the past 20 years, going from a billion strong in 1996 to roughly 30 million today because of habitat destruction. On Monday, the U.S. government announced the first federal pot of money for rescuing monarchs, with the Fish and Wildlife Service earmarking $3.2 million for the effort.

On-the-ground efforts are crucial to saving the iconic butterfly because weed eradication efforts, along with the loss of prairies, have destroyed milkweed plants, which monarch caterpillars feed on exclusively. A petition to list the monarch as threatened under the federal Endangered Species Act is now under review by the Department of the Interior.

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NG Maps. Source: Journey North.

Fish and Wildlife will focus on restoring milkweed in key areas across the country, including spring breeding areas in Texas and Oklahoma, summer breeding grounds throughout the Midwest, and places west of the Rocky Mountains. (Read "Found at Last: The Monarch's Winter Home" in National Geographic magazine.)

The idea is to restore enough milkweed to support increasing numbers of new monarchs. Devastating storms can wipe out 75 percent of the winter population in Mexico—one such storm killed 500 million monarchs in 2002. There were enough butterflies then that the survivors were able to reestablish a population, but recovering from such a blow would be much more difficult today.